package me.zk.practice1.s;

/**
 * @author zhangkai
 * @date 2023/7/6 12:28
 */
public class ListNode {
    int val;
    ListNode next;
    ListNode() {}
    ListNode(int val) { this.val = val; }
    ListNode(int val, ListNode next) { this.val = val; this.next = next; }
}
